Take the 'A' Train

Recording by Duke Ellington.

Recording identifiers

ISRC
DKEFA1700304
CopyrightID (CopyrightChains transaction hash)
0x22f9335d366eb2ab4c2b5ebbc1e70c725ddee39af4fb563c5efad9c49882fee3
Copyright registration time
2026-07-07T05:41:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:cc2e52f9d6ce6701b63114a18e60a14baefe055c59e3482d0bc80deca6028588

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.